Description of problem:

bouncycastle-mail-1.46-9.fc20 sports such package scripts:

postinstall scriptlet (using /bin/sh):
%update_maven_depmap
postuninstall scriptlet (using /bin/sh):
%update_maven_depmap

On an update this results in:
 
/var/tmp/rpm-tmp.1ANixh: line 1: fg: no job control
warning: %post(bouncycastle-mail-1.46-9.fc20.noarch) scriptlet failed, exit status 1

Uninstalling this package will fail too resulting in duplicates on an update.

Version-Release number of selected component (if applicable):
bouncycastle-mail-1.46-9.fc20

Additional info:
Such unexpanded rpm macros seem to be more "popular" in recent time.  See, for example, bug 995891 and bug 983760 albeit with a somewhat different "leftovers".